# Multi-project bugs

#### IMPORTANT
This document has been migrated from help.launchpad.net as is, and has not
yet been revised. The content might be outdated, links and images could be
broken. We are aware and will fix any issues as soon as possible.

*   [Multi-project bugs](https://ubuntu.com/docs/launchpad/user/reference/bugs/multi-project-bugs/about-multi-project-bugs/index.html.md)
  * [Working with multi-project bugs](https://ubuntu.com/docs/launchpad/user/reference/bugs/multi-project-bugs/about-multi-project-bugs/index.html.md#working-with-multi-project-bugs)
  * [Bugs in external trackers](https://ubuntu.com/docs/launchpad/user/reference/bugs/multi-project-bugs/about-multi-project-bugs/index.html.md#bugs-in-external-trackers)
  * [Further information](https://ubuntu.com/docs/launchpad/user/reference/bugs/multi-project-bugs/about-multi-project-bugs/index.html.md#further-information)
*   [Tracking bugs across multiple projects](https://ubuntu.com/docs/launchpad/user/reference/bugs/multi-project-bugs/tracking-multi-project-bugs/index.html.md)
  * [Bugs that affect multiple communities](https://ubuntu.com/docs/launchpad/user/reference/bugs/multi-project-bugs/tracking-multi-project-bugs/index.html.md#bugs-that-affect-multiple-communities)
  * [Several occurrences of the same bug in one project](https://ubuntu.com/docs/launchpad/user/reference/bugs/multi-project-bugs/tracking-multi-project-bugs/index.html.md#several-occurrences-of-the-same-bug-in-one-project)
  * [Fixing bugs in previous versions of software](https://ubuntu.com/docs/launchpad/user/reference/bugs/multi-project-bugs/tracking-multi-project-bugs/index.html.md#fixing-bugs-in-previous-versions-of-software)